Hey Guys, I recently purchased a 24" iMac in the UK. I am unhappy with the screen, as after a few hours of use the middle bottom of the screen is rather bright, whereas the top corners of the screen are a murky grey. It's noticeably harder to read Adium messages when the window is in the upper left of the screen especially, and if you move a clear white box around the screen it only seems to remain white over approximately a third of the screen. Now, I have been reading a few forums and have found many references to the 'Gradient Issue'. As such, I feel that my best move is to return my iMac, save up for a few more months and purchase a mac pro. I would like to know if I am able to return the product - even though I've been using it for a couple of days, without any problems? (Purchased a few days ago). The returns policy hints that it's Ok, even though I've used it as only software has to be returned in the original sealed condition. Along the same lines - will there be a restocking fee in the UK? I would consider the unit unfit for purpose - having an uneven screen luminosity and being used for design work, but will they? More worringly, I've already purchased and registered by Apple Care plan associated with this machine. Does anyone know if this will be refundable if I return to the store with the original box? Or any way at all!? Many thanks - it's nice to finally post here after reading your all of the insite full comments that I've read here over the past year or two!